Ringed Turtle-Doves also have a laugh-like  heh-heh-heh  call when excited. The White-winged Dove (Zenaida asiatica, also non-native) and the Mourning Dove (Zenaida macroura, a Florida native) are also very similar in size and appearance to the Eurasian Collared-Dove, but neither species has a black collar.
The megagametophyte produces an egg cell (or several egg cells in some groups) for the purpose of fertilization. After fertilization, the ovule develops into a seed.he ovary of the gynoecium produces one or more ovules and ultimately becomes the fruit wall. Ovules are attached to the placenta in the ovary through a stalk-like structure known as a funiculus (plural, funiculi). Different patterns of ovule attachment, or placentation, can be found among plant species, these include:
Not only does the fallopian tube collect and transport the egg, it is also the location where fertilization occurs. Sperm cells that enter the reproductive system through the vagina travel to the fallopian tube where they fertilize the egg.